Test wallpaper picker app could launch in dev and stable channel

chrome/browser/chromeos/extensions/wallpaper_manager_browsertest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/files/file_path.h"
+#include "base/path_service.h"
+#include "chrome/browser/apps/app_browsertest_util.h"
+#include "chrome/browser/extensions/component_loader.h"
+#include "chrome/browser/extensions/extension_service.h"
+#include "chrome/browser/extensions/extension_test_message_listener.h"
+#include "extensions/browser/extension_registry.h"
+#include "grit/browser_resources.h"
+
+using extensions::Extension;
+using extensions::ExtensionRegistry;
+
+namespace {
+const char* kWallpaperManagerExtensionID = "obklkkbkpaoaejdabbfldmcfplpdgolj";
+}  // namespace
+
+class WallpaperManagerBrowserTest : public extensions::PlatformAppBrowserTest {
+ public:
+  WallpaperManagerBrowserTest();
+  virtual ~WallpaperManagerBrowserTest();
+
+ protected:
+  void LoadAndLaunchWallpaperManager();
+};
+
+WallpaperManagerBrowserTest::WallpaperManagerBrowserTest() {
+}
+
+WallpaperManagerBrowserTest::~WallpaperManagerBrowserTest() {
+}
+
+void WallpaperManagerBrowserTest::LoadAndLaunchWallpaperManager() {
+  extension_service()->component_loader()->Add(
+      IDR_WALLPAPERMANAGER_MANIFEST,
+      base::FilePath(FILE_PATH_LITERAL("chromeos/wallpaper_manager")));
+  const Extension* wallpaper_app =
+      ExtensionRegistry::Get(profile())->GetExtensionById(
+          kWallpaperManagerExtensionID, ExtensionRegistry::EVERYTHING);
+  LaunchPlatformApp(wallpaper_app);
+}
+
+// Test for crbug.com/410550.
+IN_PROC_BROWSER_TEST_F(WallpaperManagerBrowserTest, DevLaunchApp) {
+  ExtensionTestMessageListener window_created_listener(
+      "wallpaper-window-created", false);
+  ExtensionTestMessageListener launched_listener("launched", false);
+  LoadAndLaunchWallpaperManager();
+  EXPECT_TRUE(window_created_listener.WaitUntilSatisfied())
+      << "Wallpaper picker window was not created.";
+  EXPECT_TRUE(launched_listener.WaitUntilSatisfied())
+      << "Wallpaper picker was not loaded.";
+}
+
+// Test for crbug.com/410550. Wallpaper picker should be able to create
+// alpha enabled window successfully.
+IN_PROC_BROWSER_TEST_F(WallpaperManagerBrowserTest, StableLaunchApp) {
+  extensions::ScopedCurrentChannel channel(chrome::VersionInfo::CHANNEL_STABLE);

[kevers, 2014/09/23 13:23:40]

Optional: Create a private method with the common code between DevLaunchApp and
StableLaunchApp to reduce code duplication.

[bshe, 2014/09/23 20:58:21]

Done.

+  ExtensionTestMessageListener window_created_listener(
+      "wallpaper-window-created", false);
+  ExtensionTestMessageListener launched_listener("launched", false);
+  LoadAndLaunchWallpaperManager();
+  EXPECT_TRUE(window_created_listener.WaitUntilSatisfied())
+      << "Wallpaper picker window was not created.";
+  EXPECT_TRUE(launched_listener.WaitUntilSatisfied())
+      << "Wallpaper picker was not loaded.";
+}